. >> there is 635 law enforcement and the coast guard demonstrated how they'll intercept folk that's may cross into the area but not anticipating problem autos we don't usually have a problem. people are understanding and know what they're supposed to be doing because we're there to enjoy a show. >> they are anticipating three times normal number of boats on the bay. >> they want everybody to have a life jacket. >> she the shoved off safety gear today. a helicopter hovered over the bay. >> take a look what they're going through. and what kind of message is to get them out of the water. >> there will be extra security on the water and around the bay. >> yes there is added security including bomb-sniffing dog autos we'll be at piers. >> for the coast guard it's a lot of work. >> this is a huge undertaking for the coast guard. >> it's going to be a big weekend. coming up at 6:00 we'll have the arrival of the blue angels and i bet they're on time. >> and fleet week is one of the big events going bring hundreds of to yous of people into san francisco this weekend. there is a map for you.